it's a zoo
Some place or thing is busy, crowded, and/or chaotic. Primarily heard in US. I'm not going to the store on a Sunday, it's always a zoo then! Oh, it's a real zoo at this birthday party with 30 six-year-olds.
it's a zoo
Also, what a zoo. This is a place or situation of confusion and/or disorder. For example, Mary's got all these house guests with children and pets-it's a zoo, or We're in the midst of moving our office and files are all over the place-what a zoo! [Slang; late 1800s]
it's a zoo
AMERICAN, INFORMALPeople say it's a zoo to mean that a situation is noisy and uncontrolled. Les Baux's views may be gorgeous, but at nearly two million visitors a year, it's a zoo.